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Showing 1–5 of 5 results
Advanced filters: Author: Minghuan Cui Clear advanced filters

  • Quasi-2D halide perovskites are good candidates for efficient and stable solar cells but they suffer from high open-circuit voltage (Voc) deficit. Here He et al. show that homogeneous energy landscape of the charge transport levels is important to suppressing the recombination and increasing Voc.

    • Tingwei He
    • Saisai Li
    • Mingjian Yuan
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-11

  • Ultrasmall monodisperse perovskite quantum dots are synthesized in situ on a substrate via ligand structure regulation, yielding the highest external quantum efficiency blue perovskite LEDs reported so far.

    • Yuanzhi Jiang
    • Changjiu Sun
    • Mingjian Yuan
    Research
    Nature
    Volume: 612, P: 679-684

  • Performance of perovskite LED tends to decline as the active area increases, thus understanding the failure mechanism is paramount to surmount this limitation. Here, the authors report severe phase-segregation to be the cause, and introduce L-Norvaline to overcome it, as the result, highly-efficient 9.0 cm2 green PeLED is realised.

    • Changjiu Sun
    • Yuanzhi Jiang
    • Mingjian Yuan
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-11

  • Designing efficient perovskite light-emitting diodes remains a challenge due to the strong Auger recombination and resulting Joule heating. Here, the authors propose polarizable p-fluorophenethylammonium to generate quasi-2D perovskites with reduced binding energy developing perovskite light-emitting diodes with a peak EQE of 20.36% and a maximum luminance of 82,480 cdm-2.

    • Yuanzhi Jiang
    • Minghuan Cui
    • Mingjian Yuan
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-10

  • Besides device operational stability, the color stability is also an important challenge for the perovskite light-emitting diodes, especially the blue ones. Here Jiang et al. report the most efficient and color stable pure-blue perovskite LEDs so far, with a half-lifetime of 14.5 minutes.

    • Yuanzhi Jiang
    • Chaochao Qin
    • Jun Chen
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-9